Dataset Overview

Replicates of ammonia concentration

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Provide a consistent, long-term record of ammonia gas (NH3) concentrations from Vermont for use in the aquatic acidification model

Data Collection Status

Data collection for this dataset is ongoing

Start date



40 records with 8 fields

Data Availability

This dataset is downloadable from the FEMC, and available to download from another site.

Data License

Linked - Third party determines data license

Preferred Citation

Published use of CASTNET data or info must acknowledge CASTNET as the source: U.S. Environmental Protection Agency Clean Air Markets Division Clean Air Status and Trends Network (CASTNET) [Data table(s) accessed (i.e., Hourly Ozone, Annual Total Deposition)]Available at and date

Update Frequency


Maintenance Plan

Weekly collection by VMC staff


  • Ammonia Monitoring Network page
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